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Takagi T-K1, Installation Manual And Owner'S Manual

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Table of Contents 

 

Specifications…………………………….. 1 
For Your Safety…………………………... 

2 

Operation…………………………………. 3 
 General…………………………… 

3 

 

Turning It On……………………… 

3 

 

Turning It Off……………………… 

3 

 Temperature……………………… 

3 

 Flow……………………………….. 

4 

 Freeze 

Protection………………... 

4 

Installation………………………………… 5 
 General…………………………… 

5 

 Accessories………………………. 

5 

 Electrical 

Connections…………... 

5 

 Wiring 

Diagram…………………... 

6 

 Gas 

Supply 

Piping………………. 

7 

 Water 

Plumbing………………….. 

8 

 

Pressure Relief Valve……………. 

8 

 

Wall Hanging Installation………... 

9 

 Standing 

Installation……………... 

9 

 Outdoor 

Installation……………… 

9-10 

 Indoor 

Installation………………... 

10-11 

  Combustible 

Air 

Supply…. 

10 

  Exhaust 

Venting…………. 

11 

Manufactured Home (Mobile Home) 
Installation………………………….11 
 Indoor……………………… 

11 

 Outdoor……………………. 

11 

Initiating the Appliance…………... 

12 

Initial Operation…………………... 

12  

Space Heating Application……….  13 
Dual Purpose Heating                   

14 

Applications………………………. 15 

  Storage 

Tank……………... 

15 

  Recirculation……………… 

15 

Maintenance……………………………… 18 
Before Operating                                      

16 

Danger                                                     

17 

Maintenance                                            

18 

Troubleshooting………………………….. 18-19 
Optional Items……………………………. 

20 

 TK-RE01………………………….. 

20 

 TK-BK01………………………….. 

20 

 TK-TV01…………………………... 

20 

 TK-TV03…………………………... 

20 

Exploded Diagram……………………….. 

21 

Parts List………………………………….. 

22 

Flow Charts……………………………….. 

23

 

Specifications 

 

Natural Gas Input 

Min. 37,000 Btu 

 

Max. 165,000 Btu 

 
LPG Input 

Min. 35,000 Btu 

 

Max. 165,000 Btu 

 
Gas Connection 

¾” NPT 

 
Water Connections 

¾” NPT 

 
Water Pressure 

Min. 15 psi 

 

Max. 150 psi 

 
Natural Gas Pressure Inlet 

Min. 5” WC 

 Max. 

10.5” 

WC 

 
LP Gas Pressure Inlet 

Min. 11” WC 

 

Max. 14” WC 

 
Manifold Pressure 

Natural 3.5” WC  

 

Propane 4.0” WC  

 
Weight 60 

lbs. 

 
Dimensions 24.5”x16.5”x8.3” 
 
Ignition Electronic 

Ignition 

 
Electrical Supply 

AC 120 V 

 

*** 

 

• 

Inlet gas pressure must not exceed the above 
maximum values. 

• 

For gas pressures lower than 5” WC for natural 
gas, call the manufacturer. 

• 

Before installing in areas over 4,500 feet above 
sea level, contact the manufacturer for high 
altitude adjustment instructions. 

• 

Check the rating plate to insure this product 
matches your specifications. 

• 

Takagi - USA is constantly improving our 
products, therefore specifications are subject 
to change without prior notice. 

 

1

Summary of Contents for T-K1

Page 1: ...tes carbon monoxide gas and flue gases which can cause serious injury or death Improper installation and or operation or installation by an unqualified person will void warranty ng WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors or liquids in the ...

Page 2: ...K RE01 20 TK BK01 20 TK TV01 20 TK TV03 20 Exploded Diagram 21 Parts List 22 Flow Charts 23 Specifications Natural Gas Input Min 37 000 Btu Max 165 000 Btu LPG Input Min 35 000 Btu Max 165 000 Btu Gas Connection NPT Water Connections NPT Water Pressure Min 15 psi Max 150 psi Natural Gas Pressure Inlet Min 5 WC Max 10 5 WC LP Gas Pressure Inlet Min 11 WC Max 14 WC Manifold Pressure Natural 3 5 WC P...

Page 3: ...n the Gas Company or the manufacturer WARNING Do not disconnect the electrical supply if the temperatures will be near freezing The Freeze Prevention Device will only work if the unit has proper electrical power The Freeze Prevention Device is rated for temperatures down to 5º F 15º C in a wind free environment The wind chill factor will cause the Flash Water Heater to freeze and be damaged at tem...

Page 4: ...h water heater 1 Open a hot water tap or turn on water demanding appliance 2 Unit will detect flow burners will ignite Fire On lamp will light up 3 If necessary mix in cold water to get a comfortable temperature Turning It Off To turn off the Flash water heater 1 Close the hot water tap or turn appliance off 2 Flow will diminish unit will shut off 3 Fire On lamp will go out Temperature The output ...

Page 5: ...t install the water heater in an area with extremely cold weather This will void your warranty and Takagi Industrial Co USA Inc will not be responsible for any damage that occurs WARNING The pipe heaters are located on the Flash Water Heater only Any hot or cold water pipes located outside of the unit will not be protected Properly protect and insulate these pipes from freezing If the heater will ...

Page 6: ...aller The installer is responsible for the correct installation of your Flash Water Heater For Your Safety Only a certified and trained service technician or qualified plumber may service or install your product included with the unit Please keep this owner s manual in a safe place for future reference Copies of this manual are available from TAKAGI USA Electrical Connections The T K1 requires a 6...

Page 7: ...Rating 120 VAC 60 Hz 0 8 A Note If any of the original wiring supplied with this appliance must be replaced it must be replaced with appliance wiring material 180c or its equivalent Wires are available through the manufacturer 6 ...

Page 8: ...our gas type Always install a manual shutoff valve on the gas supply line in case of an emergency or if service or maintenance is necessary This appliance and its individual shut off valve must be isolated from the gas supply piping system by unplugging the unit and turning off the main gas valve during any pressure testing of the gas supply piping system at test pressures equal to or less than PS...

Page 9: ... hot line out of the unit with no check valves or control valves between the unit and the relief valve The Pressure relief valve must be rated for 150 PSI and have a discharge capacity of 165 000 BTU Connect the discharge opening of the relief valve to a suitable drain to prevent water damage should discharge occur If the pressure relief valve discharges periodically this may be due to thermal exp...

Page 10: ...nding area must be open in front and on the sides of the unit Use the included L brackets to connect the unit to a wall to ensure that it does not fall over These brackets will maintain the required 1 clearance between the back of the unit and a combustible surface WARNING Do not have the flue terminal pointing toward any opening into a building Do not locate your heater in a pit or any location w...

Page 11: ...r installation safety features WARNING Do not install the unit directly on a combustible surface such as carpeting wood floors etc If it is necessary to install the unit standing on a surface install a 3 noncombustible base between the unit and the surface Indoor Installation Follow all local codes or in the absence of local codes follow the codes for Installation of Gas Burning Appliances Nationa...

Page 12: ...ed through a wall use Takagi USA Inc optional part the TK TV01 vent terminator or an equal Category III vent part Locate the vent terminator according to ANSI Z223 1 NFPA 54 and applicable local codes Maintain the following clearances to any combustible surface in an indoor installation Indoor Clearances Piping side 6 Front Maintenance space Suggested 24 Min 4 Floor Noncombustible base Back of hea...

Page 13: ... SMELL GAS Do not use any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Initial Operation 1 STOP Do not operate without reading the safety information first 2 Switch off the electrical power supply to the...

Page 14: ...for space heating at temperatures higher than required for other used a means such as a mixing valve shall be installed to temper the water for those uses in order to reduce scald hazard potential Water temperature over 125 F can cause severe burns instantly or death from scalds Chemicals such as diluted Glycol can be used for radiant floor Hydro warm air or Baseboard heating only Basic system dra...

Page 15: ...eboard heating equipments Warning Follow all local codes or in the absence of local codes follow the most recent edition of the National Standard Code ANSI Z21 10 3 Warning This illustration is for concept only There are a wide variety of variations to the application of controls and equipment presented applications Designers must add all necessary safety and auxiliary equipment to conform to code...

Page 16: ...y to achieve higher flow rates for longer periods of time then it can be installed in conjunction with a storage tank A pump will be necessary to keep the water hot and it should be controlled by an Aquastat set at 120 F max with a 10 F differential We suggest a pump of 1 12 hp or greater depending on the system Recirculation This system will need a pump controlled by an aquastat Set aquastat at 9...

Page 17: ...ater heater area for evidence of leaking gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach you...

Page 18: ...ldren or the infirm without supervised Vapors 1 Cannot be seen 2 Vapors are heavier than air 3 Go a long way on the floor 4 Can be carried from other rooms to the main burner by air currents Keep flammable products 1 Far away from heater 2 In approved containers 3 Tightly closed 4 Out of children s reach DANGER Hot Water Heater temperature over 125 F can cause severe burns instantly or death from ...

Page 19: ...g according to the chart first check that the gas supply line is sized properly and that the gas pressure is within the required range If the gas line is okay check the plumbing for mixing valves thermostatic valves scald protection single handled valves or crossed connections If the unit is performing in accordance with the flow chart then it may be undersized for the application It Takes Too Lon...

Page 20: ...Lower No Problem Possible parts to check 11 Igniter Computer Igniter Flame rod gas valve gas resource 12 Burner flame Computer Flame rod gas valve gas resource Blinking Off 72 Pre post check Computer Flame rod gas valve gas resource 14 Computer gas valve hi limit switch Computer hi limit switch gas valve Off Blinking 71 Computer gas valve Computer gas valve Blinking Together 45 Fan motor Computer ...

Page 21: ...1 is going to be vented out through a wall This is a CSA approved part of the unit Connect a Category III Stainless vent pipe from the top of the unit to the backside of this terminator to exhaust flue gases through the wall without a thimble Install vent terminator in accordance with manufacturer s installation instructions and any applicable local codes 4 TK TV03 Vent Cap The TK TV03 Vent Cap is...

Page 22: ...21 ...

Page 23: ...IXING PLATE 27 OVER HEAT CUT OFF FUSE 28 HEAT EXCHANGER FIXING PLATE 29 FUSE FIXING PLATE 30 HEATER BLOCK ASSEMBLY 31 HEATER FIXING PLATE 32 HI LIMIT SWITCH 33 THERMISTOR ASSEMBLY 34 FLOW SENSOR 35 WATER GOVERNOR CASE 36 WATER GOVERNOR 37 WATER INLET 38 O RING 39 O RING 40 O RING 41 O RING 42 O RING 43 JOINT PACKING 44 FILTER 45 WATER OUTLET 46 DRAIN PLUG 47 DRAIN BAND 48 DRAIN PLUG 49 DRAIN BAND ...

Page 24: ...t Temperature 40 F 3 9 3 6 3 4 3 2 3 0 2 9 2 7 50 F 4 5 4 2 3 9 3 6 3 4 3 2 3 0 60 F 5 4 4 9 4 5 4 2 3 9 3 6 3 4 70 F 6 8 6 0 5 4 4 9 4 5 4 2 3 9 110 115 120 125 130 135 140 23 Ground Water Temperature vs Hot Water Flow Rate 0 0 1 0 2 0 3 0 4 0 5 0 6 0 Inlet Ground Water Temperature to 140 F Outlet Hot Water Out Flow Rate with 140 F GPM 2 7 2 9 3 0 3 2 3 4 3 6 3 9 4 2 4 5 4 9 5 4 40 45 50 55 60 65...

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